The output on the mentioned setup is much lower in Ubuntu than in Vista. I have gotten support in #alsa, so I'm fairly sure my alsamixer settings are correct. I have also tried different model options in alsa-base, but without any luck. The volume is much lower both from the internal speakers and from the headphone outputs on the card. The behaviour fits the description at https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3785

My alsa-info output is at http://paste.ubuntu.com/24221/

Any idea what can be done to debug/solve this? Someone on a Dell forum suggested that maybe the volume ranges for the STAC9228 card could be wrong.

What model-option am I supposed to use for this card? I've seen this info:

STAC9227/9228/9229/927x ref Reference board 3stack D965 3stack 5stack D965 5stack + SPDIF dell-3stack Dell Dimension E520 dell-bios Fixes with Dell BIOS setup

but I'm not sure which one fits my setup.